1. You would recognise basically anyone from school if you bumped into them

Friends forever! (Picture: PA)

Ten years ago, you probably wouldn't even notice half of your old classmates if you ran into them several years after leaving school. Now, not only do you recognise them, but you know what their other half looks like, what they do for a living and where they had dinner yesterday.

4. You’re much more keenly aware of your friends’ political persuasions/lifestyle choices than you want to be

Always good to know where everyone stands (Picture: PA)

Oh please, do have a 46 comment-long debate about raw veganism on my newsfeed. I couldn't be more interested.

5. Big nights out have a new stage: the photo check

DELETE (Picture: dnberty)

Dancing the night away is all fun and games until the photos of you sweaty and bedraggled appear on Facebook the next morning. Which is why you've implemented the Facebook-edit at the end of each night (or first thing the next morning) to ensure no embarrassment is left on any of your friends' camera-phones.

6. You sometimes have to pretend to know less than you actually do

Just smile and feign innocence... (Picture: AndreyPopov)

It just isn't cool to be on a first date and responding to stories by saying, 'Oh yeah, I saw you did that! Looked like fun. I hope that's your sister in your profile picture, by the way!'

7. You’ve lost all sense of the meaning of the word ‘friend’

Friends forever! (Picture: File)

You count your old French teacher, a one-night stand you'd rather forget and a taxi driver you once had amongst your Facebook 'friends'.

8. Your parents/employers know way too much about your life

Everyone's seen this (Picture: vetkit)

9. ‘Stalking’ is an acceptable social activity

That's right, have a good old stalk (Picture: Artistan)

Well, not entirely. But answering the question 'What did you do last night?' with 'Stalked my ex' is much more acceptable than the 2004 meaning of that phrase.

10. ‘Poking’ people is a thing

She's totally poking Ban Ki-moon (Picture: EPA)

And sometimes you accidentally do it in real life, too.

11. It’s not official until you’ve changed your status to ‘In a relationship’

Smug gits (Picture: BONNINSTUDIO)

Because we all know human emotion is stalled until the internet knows.

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